Home / 684,310.20-1,024,521.30-647,071.80

Finding the Fourth Proportional to 684,310.20, 1,024,521.30 and 647,071.80

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Solution

The fourth proportional to 684,310.20, 1,024,521.30 and 647,071.80 is: 968,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,310.20 : 1,024,521.30 = 647,071.80 : x
  2. Step 2: Convert to fraction form
    684,310.20/1,024,521.30 = 647,071.80/x
  3. Step 3: Cross multiply
    684,310.20x = 1,024,521.30 × 647,071.80
  4. Step 4: Simplify right side
    684,310.20x = 662,938,841,729.34
  5. Step 5: Solve for x
    x = 662,938,841,729.34/684,310.20
  6. Step 6: Final answer
    x = 968,769.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.